APPENDIX F: Terminal Modules and ASCII Terminal Setups
175
Hewlett Packard: HP-2645 Terminal Setup
1. Disconnect the AC power cord from the outlet before setting up the configuration switches.
2. There are three switches located at the upper left of the keyboard. These control the duplex, parity,
and baud rate data communication options. Set the Duplex switch to FULL, and set the parity and
baud as desired.
3. There are three groups of switches, with eight switches in each group, found on the 13260A
Standard Asynchronous Communications PCA board within the terminal. Set these switches to the
following values.
Switch
Set To:
Comments
A
OPEN
Transmit ESCAPE codes
B
CLOSED
Typed spaces will overwrite existing characters
C
OPEN
Auto wraparound disabled
D
N.A.
Applicable only in Block Mode
E
N.A.
Applicable only with paper-tape reading
F
CLOSED
Terminal Baud is determined by the switch on
the keyboard
G, H, J, K
N.A.
Applicable only in Block Mode
L
CLOSED
No effect on Self-Test
M
CLOSED
INSERT CHAR and DELETE CHAR keys
operate in normal sense
N
CLOSED
No effect on printer ESCAPE code transfer
P, Q
?
APL printing pairing codes
R
OPEN
Transition from receive state to transmit occurs
after CB (Clear to Send) goes on.
S, T
CLOSED
Non-main channel protocol.
U, V
OPEN
Terminal ignores all transitions of SB (Secondary
Receive Data) and CF (Carrier Detect)
W
?
Disable/Enable Data Comm. Self Test
X
?
Data Speed signal low or high (CH = 0 or 1)
Y
?
Transmit LED lit for CB (Send to Clear) or for
CC (Data Set Ready)
Z
?
If Parity switch is set to No Parity, this switch
forces Bit 8 to zero (CLOSED) or one (OPEN).
If Parity switch is set to Even or Odd, this switch
chooses Check for parity error (CLOSED) or
No check for parity error (OPEN).
4. Replace the terminal cover, reconnect the AC power cord, and connect the terminal to the LinkUp
5294 with a modem or direct-connect cable, as appropriate.